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Finding the Fourth Proportional to 21,034.35, 29,026.35 and 11,602.71

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Solution

The fourth proportional to 21,034.35, 29,026.35 and 11,602.71 is: 16,011.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034.35 : 29,026.35 = 11,602.71 : x
  2. Step 2: Convert to fraction form
    21,034.35/29,026.35 = 11,602.71/x
  3. Step 3: Cross multiply
    21,034.35x = 29,026.35 × 11,602.71
  4. Step 4: Simplify right side
    21,034.35x = 336,784,321.41
  5. Step 5: Solve for x
    x = 336,784,321.41/21,034.35
  6. Step 6: Final answer
    x = 16,011.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.